Is my best friend gay? does he like me?

a few nights ago i was with my best friend and we were drunk and always pulls out his d*ck when hes drunk/high but i think he only does it around me. I know he really trusts me and its mutual. He walks around in just his boxers when im there. After he pulled out his d*ck he said that now i should bring mine out. I am subconscious about my size and his d*ck is pretty large. He told me he thought i was gay once but im really just confused and curious i think. I would do stuff with him but im not sure how i should go about it because im not sure how he would react. also hes always telling me to pee next to him when we're outside. hes always saying how horny he is. He was once like "i would f*** anything right now." then he said he quickly corrected himself and added "like any girl i mean."